Filter.



M. COLE.

FILTER.

APPLICATION FILED SEPT. 5, i914. lslpo Patented Apr. 27, 1915.

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1HE MORRIS PETERS Cov, PHOTO-LITHQ. WASHINGTON, D. C.

MARCELLUS COLE, OF WASHINGTON, DISTRICT OF COLUMBIA.

"l 5 ,i FILTER.

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Specification of Letters Patent.

Patented Apra 27,1915.

Application filed September 5, 1914. Serial No. 860,328.

To all whom it may concern:

Be it known that I, MARcELLUs Conn, a citizen of the United States,residing at Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Filters, o-f which the followingis a specification.

rl`he invention relates to an apparatus for filtering liquids ingeneral, but more particularly to the filtration of water; and itconsists in the peculiar construction and arrangement of thefiltering-chambers; the connections between the several chambers, andsuitable valves situated in the connections, whereby the filtration ofthe liquid, and the thorough cleansing of the chambers may beaccomplished.

One of the chief objects of the invention is the production of anapparatus for thoroughly purifying liquids, such as alcoholic and otherbeverages, and water for household and other purposes.

Another object of the invention is to so construct the apparatus thatthe several filtering-chambers may be readily cleansed of all sedimentand other deleterious deposits, independent of each other, or allcleansed at the same time.

Still another object of the invention is to provide for thoroughlysterilizing all parts of the apparatus before filtration, and aftercleansing, so that the apparatus may be placed in a sanitary condition.

Other objects of the invention, such as simplicity and cheapness ofconstruction, and effectiveness in operation, will become apparent upona complete disclosure thereof.

In the drawing, the figure shown represents a longitudinal, verticalsection of my improved filtering apparatus.

In describing my invention I have shown an apparatus suitable for afactory or large building, but it will be understood that byduplication, cities may be provided with a suitable filtration plant.

Referring to the view, the numeral 2 indicates suitable foundationpreferably piers, upon which the apparatus is supported; 3 the primaryor principal filtering-chamber; 4 the secondary filtering-chamber, and 5the auxiliary filtering-chamber of greater height than the primarychamber.

'Ihe primary filtering-chamber is provided with a fixed head 6 and adetachable head 7, the head 6 being provided with a drain outlet 8, andthe head 7 with a central aperture 9, for a purpose to be hereinafterexplained. The primary filtering-chamber is divided into twocompartments, l() and 11, by a strainer 12 composed of a wire-gauze disk13 interposed between two perforated metal plates, said strainer beingsecured between suitable supports 14. The compartment 10 is providedwith an inlet 15 in communication with a supply-pipe 16 by means of athree-way valve 17. The compartment 11 is provided with an outlet 18 incommunication with a branch supplypipe 19 by means of athree-way valve20, the inner end of said outlet 18 being provided with a wire-gauzehood 21.

The branch supply-pipe 19 is in communication with the secondaryfilteringchamber 4 through a central aperture in the detachable head 22,the other head 23 of said chamber being fixed. The secondaryfiltering-chamber is also divided by a strainer 24, similar in allrespects to the strainer 12, into two compartments, 25 and 26, and isprovided with a drain-outlet 27, to which may be detachably secured anordinary hose-faucet 28. The compartment 26 is provided with an outlet29, which is in communication with a branch supplypipe 30 by means of athree-way valve 31, the inner end of said outlet 29 being provided witha wire-gauze hood 29. The branch supply-pipe 30 is in communication withthe auxiliary or final filtering-chamber 5 by means of connections 33and 32.

The auxiliary filtering-chamber has a fixed head 34 provided with adraw-outlet 35, and a removable head 36 provided with an inlet 37 incommunication with the branch supply-pipe 30 by means of a threewayvalve 38. The said filtering-chamber is also divided into twocompartments, 39 and 40, by a strainer 41, similar in all respects tostrainers 12 and 24, and the inner end of the inlet 37 is provided witha wiregauze hood 42. In communication with the inlet 37 is a steam orhot water supply-pipe 43 provided with a cut-off valve 44, the purose ofwhich will be hereinafter explained.

Passing through the aperture 9 of the head 7 of the primaryfiltering-chamber, is a pipe 45 in communication with the supply-pipe16, and provided with a cut-off valve 46, said pipe 45 being providedwith a number of communicating branch-pipes 47 situated within thecompartment 11.

In operation, the apparatus is first thoroughly sterilized by passingsteam or hot water therethrough the three-way 'valves' 37,

31 and 2O being opened for this purpose. After the apparatus has beensterilized, the several compartments 11, 26 and 40 are each filled witha filtering material the compartf ment 11 being preferably filledwith'sand,

the compartment 26 with sand and gravel, and the compartment f1() withpulverized charcoal; although Ait will be understood w that any suitablesubstance equivalent to Y are opened, so that the liquid will passthrough inlet 15 into the compartment 10 of the primaryfiltering-chamber, and through strainer 12 into the compartment 11; outthrough outlet 18 into the lower portion of branch supply-pipe-19;through said branch supply-pipe into compartment 25 of thefiltering-chamber 4, and through the strainer 24 into4 compartment 26;out through outlet 29 into-the compartment 39 of the auxiliary-chamberfor final purification or filtration; through the strainer 4:1 intocompartment 40, and out through outlet 37 to building.

In cleansing the several filtering-compartments I prefer-to use filteredwater, and this I amable todo with my peculiar arrangement of pipeconnections and valves, and this feature, of my invention forms animportant part thereof,.for instance, if it be desired to cleanse allthree filtering-cham-` bers, the valve 17 is turned-to cut off thesupply of water to the primary-chamber, but -toallow the water to flowinto the supply-pipe 16, andthe valve 2() turned to cut off the waterfrom'said supply-pipev16, leaving it open-tothe primary and secondarychamber; the valve 31 is turned to cut off the'flow of water fromsupply-pipes 16 and 30, but ltothe auxiliary-chamber, the valve 37 isleft open to the auXiliary-chamberand closed to the distributing-pipe;the flow of water will l then lbe through supply-pipe 16 to valve 38;

through the filter-compartment 40 into compartment 39; out through valve33 intofthe filter compartment 26 of thefmain-filteringchamber L1;through compartment 25 and valve 20 into the filter compartment 11 ofthe primary-chamber, from whence itfiows into compartment 10 where allsedimentv and foreign matter passes out through the drainoutlet 8, thesediment-and' foreign matter being drawn off from the secondary andauX-iliary-chambers by -manipulating the valves of drain-outlet 27 and 35,the operation being-a reversal of filtering operation.

Itwill be evident that by my arrangement of connections, between theseveral filteringchambers, and the three-way Vvalves that keach chambermay be cleansedindependent of another, for instance, the primaryfiltering-chamber may be cleansed'independently of the -mainandauXiliary-chambers, while said secondary and auxiliary-chambers are'in use, by cutting off communication between (the branch-pipe 19 andsaid primary filtering-chamber, and allowing the waterfto pass throughsupply-pipe 16 to the, secondary fil-` tering chamber, the cleansing ofthe primarychamber through the medium of pipe45 VandV branches 47. Tocleanse the secondary filtering-chamber independently of the other twochambers, the jvalve 17 'is closed to the primary-chamber and the valve20 to both pri-- mary and secondary-chambers, andthe valves 38 and 31closed to the yauxiliary-chamber, but the valve 31 is open tosaid'secondarychamber, allowing the water vto pass through Y thesupply-pipe 16; through'branch-pipe 30 and outlet 29 into saidsecondary-chamber the sediment and Jforeign matter passing out throughthe drain-outlet-27 with the water. To cleanse the auxiliary-chamberindepend- -ent of the primary and secondary-chambers,

communicationv ofthe supply-pipe with the primary andsecondary-chambers, and with the lower portion of thefbranch-pipe withthe secondary-chamber, is cut ofi', allowing the-water to pass lthroughthe supply pipe r16; upper portion of they branch 30, and

through inlet 39 into the auxiliary-chamber, the valve 38 being openedto'permit the same,

all foreign matterl passing out through drain `outle't 35.

It will benotedthat eachfiltration-compartment'contains'a different'filtering material, the primary-chamber containing sand; the secondarychamber sand-and gravel, and the auxiliary lor final chamber containingcharcoal, so that Asuccessive Vfiltrations, Vof

:varying degrees, is obtained, and that -as each chamber isdivided intotwo compartfments it -will be obvious that a portion of the impuritiescontained inV the liquid being filtered will be deposited in thevcompartments 10, 25, and 39 before passing through combination vavertical primary chamber; a

horizontal secondary chamber; a vertical 'final chamber higher 4than theother two,Y

each chamber being divided linto two compartments byareticulatedpartition, one of 'said compartments in each chamber adapted to receivea filtering material a main supplypipe. 1 6, 1.a branch-pipe ,-15 Yconnecting said main supply-pipe with the non-filtering compartment ofthe primary chamber; a threeway valve 17 located at the junction of saidsupply and branch-pipes; a branch-pipe 19 connecting the mainsupply-pipe with the non-filtering compartment of the secondary chamber;an outlet 18 connecting the filter compartment of the primary chamberwith the branch-pipe 19; a three-way valve 20 located at the junction ofthe outlet 18 and branch-pipe 19; a branch-pipe 30 connecting the mainsupply-pipe 16 with the compartments 39 and 4:0 of the final chamber bymeans of inlets 32 and 37 respectively; an outlet 29 connecting thefiltering-compartment of the secondary chamber with the branch-pipe 30;a three-way valve 31 located at the junction of the outlet 29 and saidbranch-pipe 30, and a three-way valve 38 located at the junction of theinlet 37 and branch-pipe 30, whereby the filtered and purified liquidmay be supplied to a distributing-pipe.

2. A filtration system, having in combination primary and finalchambers, each chamber having filtering and non-filtering compartments,the latter chamber being higher than the former; a main-pipe 16; abranchpipe connecting the main-pipe with the non-filtering compartmentof said primary chamber; a three-way valve 17 located at the junction ofsaid main and branch-pipes; a branch-pipe 19 in communication with themain pipe; an outlet 18 connecting the branch-pipe 19 with the filteringcompartment of the primary chamber; a three-way valve 20 located at thejunction of said outlet 18 and the branch-pipe 19; a branch-pipeconnecting the main-pipe with the filtering and non-filteringcompartments of said final chamber by means of inlets 32 and 37respectively; a three-way valve 31 located in said branch-pipe 30; athree-way valve 38 located at the junction of the branch-pipe 30 and theinlet 37, and a valved-pipe in communication with the inlet 37, wherebya heating medium may be introduced for sterilizing the chambers andconnections.

In testimony whereof I aIiX my signature in presence of two witnesses.

MARCELLUS COLE. Witnesses:

DOROTHY HARVEY, J. R. NOTTINGHAM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

